addi $s1,$zero,1
addi $s2,$zero,2
addi $s3,$zero,1
addi $t1,$zero,1
addi $t1,$zero,1
addi $t1,$zero,1
addi $t1,$zero,1
addi $t1,$zero,1
beq $s1,$s2,test1 #not
addi $t1,$zero,2
addi $t1,$zero,2
addi $t1,$zero,2

back1:
addi $t1,$zero,3
addi $t1,$zero,3
addi $t1,$zero,3
beq $s1,$s3,test2 #yes
addi $t1,$zero,3
addi $t1,$zero,3
addi $t1,$zero,3

back2:
addi $t1,$zero,4
addi $t1,$zero,4
addi $t1,$zero,4
bne $s1,$s2,test3 #yes
addi $t1,$zero,4
addi $t1,$zero,4
addi $t1,$zero,4

back3:
addi $t1,$zero,5
addi $t1,$zero,5
addi $t1,$zero,5
bne $s1,$s3,test4 #no
addi $t1,$zero,5
addi $t1,$zero,5
addi $t1,$zero,5

back4:
j end
addi $t1,$zero,6
addi $t1,$zero,6
addi $t1,$zero,6



test1:
addi $s4,$s1,1
j back1
addi $t1,$zero,0
addi $t1,$zero,0
addi $t1,$zero,0


test2:
addi $s4,$s1,1
j back2
addi $t1,$zero,0
addi $t1,$zero,0
addi $t1,$zero,0


test3:
addi $s4,$s1,1
j back3
addi $t1,$zero,0
addi $t1,$zero,0
addi $t1,$zero,0

test4:
addi $s4,$s1,1
j back4
addi $t1,$zero,0
addi $t1,$zero,0
addi $t1,$zero,0

end: